sfHover = function() {
	var sfEls = document.getElementById("navigation").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

$(document).ready( externalLinks );

function externalLinks() {
  var exs = $('a[rel=external]');
  $.each(exs, function() {
    if ($(this).attr('href')) { $(this).attr('target','_blank'); }
  });
}